surface pro 3 windows button not working

I decided to try EasyBCD because it has UEFI support and has worked well for me with Vista and Windows 7 when Grub alone caused problems. Then I tried Recovery Options > Advanced Startup > Use A Device to try 'ubuntu' and 'USB Device', both of which booted to Windows. I then tried the Volume Down/Power Button boot, but it also went right to Windows. Then I rebooted, but it just went straight to Windows with no Grub boot manager. Seemed flaky and the Live USB runs very slowly.) Partition (In the end I did not connect to a wifi network as it

Installed Ubuntu Gnome 14.04 to MicroSD card, and Grub 2 to Windows C.

Booted to Live USB with Volume Down/Power Button.

Plugged in a USB Hub with my mouse/keyboard and Live USB key.

Installed Ubuntu Gnome 14.04 Live ISO to a USB key with UNetbootin.

Inserted a high-speed Ultra Plus 32GB MicroSD HCI card in the slot.

Disabled UEFI Secure Boot, giving me the red boot screen.

Although many people have successfully installed Ubuntu Gnome on their Surface Pro 3, including on their MicroSD card, I just can't seem to get it to boot on my SP3.

Surface pro 3 windows button not working